\documentclass[dvipdfmx]{jlreq}
\usepackage{amscd}
\usepackage[all]{xy}
\usepackage{tikz-cd}
\usepackage[lite]{folarrow}
\begin{document}
葉層構造をもつファイバー束$\pi\colon E \folrightarrow M$を次の図式で表す．
\[
\begin{CD}
V @>>> E\\
@.     @FVV{\pi}V\\
@.     M
\end{CD}
\qquad
\xymatrix{
V \ar[r] & E \ar[d]|@{fol}^{\folpad{\pi}} \\
         & M }
\qquad
\begin{tikzcd}
V \arrow[r] & E \arrow[d, foliated, "\pi"] \\
            & M
\end{tikzcd}
\]
\end{document}